Finding the Fourth Proportional to 42,734.88, 64,084.32 and 17,427.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,734.88 : 64,084.32 = 17,427.36 : x
2. Step 2: Convert to fraction form
   42,734.88/64,084.32 = 17,427.36/x
3. Step 3: Cross multiply
   42,734.88x = 64,084.32 × 17,427.36
4. Step 4: Simplify right side
   42,734.88x = 1,116,820,515.00
5. Step 5: Solve for x
   x = 1,116,820,515.00/42,734.88
6. Step 6: Final answer
   x = 26,133.70